Sampling Volume Effects on Determining Salt in a Soil Profile

Loading...
Thumbnail Image
Date
1983
Authors
Hassan,H.M
Warrick,A.W
Fard.A.
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
The effects of soil sampling volume for determining salt present were investigated in site. Six 2.2-mZ plots were hand sprinkled over a 5-d period with a total of 10 cm of water containing 1000 mg/L of chloride as eaoz• Soil samples were taken at three locations within each plot at lOcm increments to 100 cm and at 20-cm increments to the l6O-cm depth. Two different Saddlers, 7.9- and 2.1- cm diameter, were used. The salt concentration was measured on a 2:1 extract. The measurements for the larger samples were less variable than the smaller samples. The coefficient of variability (CV) for the total chloride recovered was 8 and 14% for the large and small samples, respectively. In order to compare favorably to the known amount added, the effective radius of the sampling tool was critical. The CV for the chloride concentration calculated in the soil water ranged from S to 54% and 12 to 199% for large and small Saddles by depth.
Description
Keywords
Citation
Soil Science, 47, p. 1265-1267